WATT, W. M. (1968). What is Islam. Longmans.
Chicago-čujuhus (17. p.)WATT, W. Montgomery. What Is Islam. London: Longmans, 1968.
MLA-čujuhus (9. p.)WATT, W. Montgomery. What Is Islam. Longmans, 1968.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.